PSP Quality Measures
COQ
A/FR = Appraisal_coq / Failue_COQ
la meta es que sea 2. Dedicarle el doble a Appraisal
Appraisal
Costs are the codest of inspecting for defects.
In PSP: design and code revie
defect prevention
Identificar y resolver causas
failure
Tiempo de compilacion y pruebas
PSP: it is compile and thes time
Defect Removal Leverage
DRL(phase/UT) = (defects/hour for phase_X) / (defects / hour for unit_test)
DRL(phase/UT) is the DRL for phase X with respect to unit test.
the usual base is UT
defects removed per hour by a process step
Yield
PSP review rates
doucments: 4 pags / hour
200 LoC/ hour
Potential Control Parameters
review rate is the most useful to improve Yield
defects found per size unit
defects found per hour
Ex. size units reviewed / hour
Yield (proceso)
Without a name 'process yield' = phase yield beforo compile and test
Process Yield is the % of defects injected before a phas that were found *before* that phase
Yield (for phase)
Defects found / (Defects_found + not_found)
